Abstract: According to exemplary embodiments of the present disclosure, devices, systems, and methods for endoscopic procedures may include an end effector of a grasping system having a first arm and a second arm. The first and second arms may extend from a common proximal joint. The first and second arms may be formed of a self-expanding material and may have a spring force to set the arms in an unconstrained open position. The first and second arms may have an arc shape such that a distal tip of each first and second arm are configured to close as the first and second arms are actuated to a constrained closed position. A catheter may include a locating element at a distal end of a flexible tube. The locating element may be configured for locating the grasping system.

Abstract: A cathode heater assembly for use in a vacuum electronic device comprises a refractive cup having a bottom portion and side walls forming a container; a cathode secured in the container of the refractive cup; and a heater wire coupled to the refractive cup. The cathode heater assembly may be manufactured by providing a refractive cup having a bottom portion and side walls forming a container; inserting a cathode pellet in the container of the refractive cup; impregnating the cathode pellet with electron emissive materials while the cathode pellet is in the container of the refractive cup; and attaching a heater wire to the refractive cup.

Abstract: According to exemplary embodiments of the present disclosure, devices, systems, and methods for pyloric occlusion in an endoscopic procedure may include a first flange and a second flange connected to the first flange by a saddle region having a lumen. The second flange may be proximal to the first flange. The pyloric occlusion device may further include a closure element. The closure element may be configured to occlude a flow of material through the lumen, including across the pylorus when deployed. The closure element may be a closure of the lumen by rotation of one of the first or second flanges about the saddle region relative to the other of the first or second flange.

Abstract: This disclosure relates generally to medical devices, systems, and methods for locating devices and/or anatomy during medical procedures. More particularly, in some embodiments, the disclosure relates to medical device and/or anatomy locating devices, access devices, and systems and methods thereof, for use during, e.g., gastrojejunostomy procedures. In an aspect, a medical device locator may include an elongate member (such as sheath or guidewire) having a proximal end, a distal end, a longitudinal axis, and a length extending along the longitudinal axis. A location device may be disposed along the length of the elongate member.

Abstract: This disclosure relates generally to medical devices, systems, and methods for locating devices and/or anatomy during medical procedures. More particularly, in some embodiments, the disclosure relates to medical device and/or anatomy locating devices, access devices, and systems and methods thereof, for use during, e.g., gastrojejunostomy procedures. In an aspect, a medical device locator may include an elongate member (such as sheath or guidewire) having a proximal end, a distal end, a longitudinal axis, and a length extending along the longitudinal axis. A location device may be disposed along the length of the elongate member.

Abstract: According to exemplary embodiments of the present disclosure, devices, systems, and methods for pyloric occlusion in an endoscopic procedure may include a first flange and a second flange connected to the first flange by a saddle region having a lumen. The second flange may be proximal to the first flange. The pyloric occlusion device may further include a closure element. The closure element may be configured to occlude a flow of material through the lumen, including across the pylorus when deployed. The closure element may be a closure of the lumen by rotation of one of the first or second flanges about the saddle region relative to the other of the first or second flange.

Abstract: A radio-frequency (RF) window comprises a first flange assembly including a first flange having a first flange thickness between a first surface and a second surface, and a first waveguide channel; and a first window element having a first window thickness and disposed in the first waveguide channel at a first location; and a second flange assembly stacked against the first flange assembly, the second flange assembly including a second flange having a second flange thickness between a third surface and a fourth surface, and a second waveguide channel; and a second window element having a second window thickness and disposed in the second waveguide channel at a second location, such that when the first flange assembly is stacked against the second flange assembly the second window element has a predetermined distance to the first window element, the predetermined distance selected based on a desired frequency band of operations.

Abstract: A depressed collector, comprises an insulator body; a plurality of serial electrodes, each serial electrode having a serial electrode receptor portion inside the insulator body and having a serial electrode thermal fin portion passing through and extending outside the insulator body; and a terminal electrode having a terminal electrode receptor portion inside the insulator body and having a terminal electrode thermal fin portion passing through and extending outside the insulator body.

Abstract: A method of manufacturing a radio frequency (RF) or electron beam structure, comprises forming each layer of multiple layers to be assembled and bonded together with positional alignment, the forming each layer including forming a first via segment of a first particular shape and dimension in the layer at a first location in the layer, such that when the first via segments of the multiple layers are assembled with positional alignment the multiple first via segments align to form a first via; and inserting a first analogous pin into the first via, the first analogous pin being formed based on the first particular shape and dimension of each of the first via segments, such that inserting the first analogous pin into the first via assists in causing the multiple layers to be assembled with positional alignment.

Abstract: A cathode heater assembly for use in a vacuum electronic device includes a refractive cup having a bottom portion and side walls forming a container; a cathode secured in the container of the refractive cup; and a heater wire coupled to the refractive cup. The cathode heater assembly may be manufactured by providing a refractive cup having a bottom portion and side walls forming a container; inserting a cathode pellet in the container of the refractive cup; impregnating the cathode pellet with electron emissive materials while the cathode pellet is in the container of the refractive cup; and attaching a heater wire to the refractive cup.

Abstract: A cathode heater assembly for use in a vacuum electronic device comprises a refractive cup having a bottom portion and side walls forming a container; a cathode secured in the container of the refractive cup; and a heater wire coupled to the refractive cup. The cathode heater assembly may be manufactured by providing a refractive cup having a bottom portion and side walls forming a container; inserting a cathode pellet in the container of the refractive cup; impregnating the cathode pellet with electron emissive materials while the cathode pellet is in the container of the refractive cup; and attaching a heater wire to the refractive cup.

Abstract: The present disclosure relates generally to the field of medical devices. In particular, the present disclosure relates to medical devices for facilitating the flow of fluids and materials in and/or between adjacent body lumens, for example, a stent which maintains an open flow passage between body lumens. In one example, a stent may comprise an elongate body configured to be expandable between a first constrained configuration and a second unconstrained configuration. In the unconstrained configuration, the body may have a first retention member, a second retention member, and a cylindrical saddle region defining a lumen extending along a longitudinal axis therebetween. The first retention member or the second retention member, or both, may comprise a double-walled flange with an axially inward wall and axially outward wall, a portion of the inward wall bending towards a vertical center plane of the saddle region along the longitudinal axis.

Abstract: The present disclosure relates generally to the field of medical devices. In particular, the present disclosure relates to medical devices for facilitating the flow of fluids and materials in and/or between adjacent body lumens, for example, a stent which maintains an open flow passage between body lumens. In one example, a stent may comprise an elongate body configured to be expandable between a first constrained configuration and a second unconstrained configuration. In the unconstrained configuration, the body may have a first retention member, a second retention member, and a cylindrical saddle region defining a lumen extending along a longitudinal axis therebetween. The first retention member or the second retention member, or both, may comprise a double-walled flange with an axially inward wall and axially outward wall, a portion of the inward wall bending towards a vertical center plane of the saddle region along the longitudinal axis.

Abstract: A magnet array holder configured to retain magnet pieces and/or non-magnet pieces to form a magnet array, the magnet array configured to manipulate one or more electron beams in a vacuum electronic device when assembled, the magnet array holder comprising a set of slots configured to receive magnet and/or non-magnet pieces; a set of pockets to receive magnet and/or non-magnet pieces; and one or more attachment interfaces configured to couple the magnet array holder to a vacuum electronic device.

Abstract: An implantable device configured to be deployed at a deployment site such as across a body passage. The implantable device has features enhancing the resistance of at least a portion of the implantable device to migration from the deployment site. The implantable device may have surfaces contacting tissue at the deployment site which are configured to promote tissue ingrowth with respect to the implantable device. Surfaces of the implantable device not contacting tissue may be enlarged and coated with a coating material increasing the strength of the coated portions of the implantable device to resist migration of the implantable device with respect to the deployment site.

Abstract: The present disclosure relates generally to the field of medical devices. In particular, the present disclosure relates to medical devices for facilitating the flow of fluids and materials in and/or between adjacent body lumens, for example, a stent which maintains an open flow passage between body lumens. In one example, a stent may comprise an elongate body configured to be expandable between a first constrained configuration and a second unconstrained configuration. In the unconstrained configuration, the body may have a first retention member, a second retention member, and a cylindrical saddle region defining a lumen extending along a longitudinal axis therebetween. The first retention member or the second retention member, or both, may comprise a double-walled flange with an axially inward wall and axially outward wall, a portion of the inward wall bending towards a vertical center plane of the saddle region along the longitudinal axis.

Abstract: According to exemplary embodiments of the present disclosure, devices, systems, and methods for pyloric occlusion in an endoscopic procedure may include a first flange and a second flange connected to the first flange by a saddle region having a lumen. The second flange may be proximal to the first flange. The pyloric occlusion device may further include a closure element. The closure element may be configured to occlude a flow of material through the lumen, including across the pylorus when deployed. The closure element may be a closure of the lumen by rotation of one of the first or second flanges about the saddle region relative to the other of the first or second flange.

Abstract: This disclosure relates generally to medical devices, systems, and methods for locating devices and/or anatomy during medical procedures. More particularly, in some embodiments, the disclosure relates to medical device and/or anatomy locating devices, access devices, and systems and methods thereof, for use during, e.g., gastrojejunostomy procedures. In an aspect, a medical device locator may include an elongate member (such as sheath or guidewire) having a proximal end, a distal end, a longitudinal axis, and a length extending along the longitudinal axis. A location device may be disposed along the length of the elongate member.

Abstract: According to exemplary embodiments of the present disclosure, devices, systems, and methods for pyloric occlusion in an endoscopic procedure may include a first flange and a second flange connected to the first flange by a saddle region having a lumen. The second flange may be proximal to the first flange. The pyloric occlusion device may further include a closure element. The closure element may be configured to occlude a flow of material through the lumen, including across the pylorus when deployed. The closure element may be a closure of the lumen by rotation of one of the first or second flanges about the saddle region relative to the other of the first or second flange.

Abstract: According to exemplary embodiments of the present disclosure, devices, systems, and methods for endoscopic procedures may include an end effector of a grasping system having a first arm and a second arm. The first and second arms may extend from a common proximal joint. The first and second arms may be formed of a self-expanding material and may have a spring force to set the arms in an unconstrained open position. The first and second arms may have an arc shape such that a distal tip of each first and second arm are configured to close as the first and second arms are actuated to a constrained closed position. A catheter may include a locating element at a distal end of a flexible tube. The locating element may be configured for locating the grasping system.